How to get columns from two different tables

Question

How to get columns from two different tables with unmatched column,

 

first query; 

select * from PriceBreakupSaleBuyBack where  itemNumber=@itemNumber

 

second query

select G_from, G_To , value from MarkupSlab where Group='G' 

 

if there any idea that i can use both query at same time. or in same connection and command.